Feed Modules VKK
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The Drive & Control Company Feed Modules VKK R310EN 2403 (2008.09)

Bosch Rexroth AG www.boschrexroth.com/brl Linear Motion and Assembly Technologies Ball Rail Systems Roller Rail Systems Linear Bushings and Shafts Ball Screw Drives Linear Motion Systems Basic Mechanical Elements Manual Production Systems Transfer Systems

R310EN 2403 (2008.09) Feed Modules VKK Bosch Rexroth AG Feed Modules VKK Product Description 4 Product Overview 6 Motor selection based on drive controllers and control system 6 Overview of types with load capacities 8 Dimensions 9 Structural Design 10 Feed Module VKK 10 Attachments 10 Motor mount and coupling 11 Timing belt side drive 11 Technical Data 12 Calculations 18 Feed Module VKK 15-50 20 Components and Ordering Data 20 Dimension drawings 22 Feed Module VKK 15-70 24 Components and Ordering Data 24 Dimension drawings 26 Feed Module VKK 25-100 28 Components and Ordering Data 28...

Bosch Rexroth AG Feed Modules VKK R310EN 2403 (2008.09) Outstanding features Rexroth Feed Modules VKK are precise, ready-to-install linear motion systems that combine high performance with compact dimensions. They are especially suitable for handling tasks requiring high precision as well as high thrust and torque transfer capabilities. Because of their low moved mass, Feed Modules VKK are ideal for vertical motion in Z-axes. Rexroth offers favorable price/performance ratios and fast delivery. Structural design Extremely compact extruded aluminum profile (frame) with zero-clearance Ball...

R310EN 2403 (2008.09) Feed Modules VKK Bosch Rexroth AG Centering holes for positive-locking connections with good reproducibility to simplify installation (camoLINE Cartesian Motion building system) Thrust rod with standard flange for a variety of attachments Without attached motor Motor attachment via timing belt side drive Motor attachment via motor mount and coupling

Bosch Rexroth AG RS232 Auto Hand Feed Modules VKK R310EN 2403 (2008.09) Product Overview Motor selection based on drive controllers and control system Several motor-controller combinations are available in order to provide the most cost-effective solution for every customer application. When dimensioning the drive unit, always consider the motor-controller combination. For more detailed information on motors and control systems, please refer to the Rexroth catalogs “ECODRIVE Cs” and “IndraDrive for Linear Motion Systems.” Digital AC servo motors MSK Digital controllers IndraDrive 3-phase...

R310EN 2403 (2008.09) Feed Modules VKK Bosch Rexroth AG Feed Modules VKK are available as complete solutions with motor, controller and control system.

Bosch Rexroth AG Feed Modules VKK R310EN 2403 (2008.09) Type designation (size) Feed Modules VKK are identified by the type designation and size. Product Overview Description Type Size Example: Feed Module V K K 25-100 System Feed Module (V) Guideway Integrated Ball Rail System (K) Drive unit Ball Screw (K) Frame size B B Width of frame (mm) Example: B = 100 mm Type System Guideway Drive unit Feed Module Load capacities C C C C C (N) VKK 15-50 6950 VKK Feed Module Ball rail system Ball screw drive VKK 15-70 8120 VKK 25-100 26000 Overview of types with load capacities

10 Bosch Rexroth AG 1 2 3 4 5 6 4 7 5 8 9 10 8 Feed Modules VKK R310EN 2403 (2008.09) Ball screw with zero-backlash cylindrical single nut Fixed bearing end block Frame Thrust rod Mounting interface for standard flange End seal 1 2 3 4 5 6 7 Magnetic field sensor 8 Motor 9 Motor mount and coupling 10 Timing belt side drive Structural Design Attachments Feed Module VKK

Bosch Rexroth AG 11 Fpr 1 2 3 5 9 8 7 10 5 1 11 6 6 4 4 R310EN 2403 (2008.09) Feed Modules VKK Motor mount and coupling A motor can be attached to all Feed Modules by means of a motor mount and coupling. The motor mount serves to fasten the motor to the Feed Module and acts as a closed housing for the coupling. The motor’s drive torque is transmitted stress-free through the coupling to the Feed Module's screw shaft. Timing belt side drive All Feed Modules offer the option of attaching the motor via a side drive with timing belt. This results in a shorter overall length compared to a motor...

12 Bosch Rexroth AG Feed Modules VKK R310EN 2403 (2008.09) Technical Data Load capacities and moments Maximum permissible loads Acceptable loads (recommended from experience) Feed Module Ball screw Dynamic load capacity C Dynamic moments Planar moment of inertia Thrust rod Maximum stroke Maximum moved mass of system Guideway (N) Ball screw (N) Fixed bearing (N) Mt ML ly lz Hmax mb d0 x P (Nm) (Nm) (cm4) (cm4) (mm) (kg) VKK 15-50 12 x 2 6 950 2 240 12 x 5 3 800 4 000 117 74 2.6 2.3 400 0.95 12 x 10 2 500 VKK 15-70 16 x 5 8 120 12 300 16 x 10 9 600 13 400 160 280 5.7 6.7 400 1.20 16 x 16 6...

R310EN 2403 (2008.09) Feed Modules VKK Bosch Rexroth AG 13 Specifications of timing belt side drive for motor attachment via timing belt side drive Motor MSM 030 B Frictional torque MRsd (Nm) 0.35 Permissible torque Reduced mass moment of inertia at Gear ratio i = 1 i = 1.5 i = 1 i = 1.5 Feed Module Ball screw Msd Msd Jsd Jsd d0 x P (Nm) (Nm) (10-6 kgm2) (10-6 kgm2) VKK 15-50 12 x 2 0.8 0.5 12 x 5 1.6 1.1 45.6 17.7 12 x 10 1.6 1.1 MRsd = frictional torque of timing belt side drive at motor journal (Nm) Msd = permissible torque for system with timing belt side drive at motor journal (Nm);...

14 Bosch Rexroth AG Feed Modules VKK R310EN 2403 (2008.09) Constants kj fix, kj var, kj m Frictional torque MRsd The constants are required to determine the mass moment of inertia of the system Js. Coupling data Feed Module Motor attachment Coupling data Rated torque McN Mass moment of inertia Jc Weight (Nm) (10-6 kgm2) (kg) VKK 15-50 MSM 020B 1.9 2.1 0.039 MSM 030B MSM 030C 3.7 7.0 0.075 VRDM 368 5.5 1.9 0.041 VKK 15-70 MSM 030C 19 60 0.26 MSM 040B MSK 030C MSK 040C VRDM 3910 VRDM 3913 VKK 25-100 MSM 040 B 19 64 0.27 MSK 050C VRDM 31117 50 200 0.7 Feed Module Ball screw Constants...

Bosch Rexroth AG 15 1,5 1,35 1,2 1,05 0,9 0,75 0,6 0,45 0,3 0,15 0 0 1,5 3 4,5 6 7,5 9 10,5 12 13,5 15 ML (Nm) (mm) 1,5 1,35 1,2 1,05 0,9 0,75 0,6 0,45 0,3 0,15 0 0 1,5 3 4,5 6 7,5 9 10,5 12 13,5 15 ML (Nm) (mm) a b c de a b c de R310EN 2403 (2008.09) Feed Modules VKK Rigidity in y-direction Rigidity in z-direction Measured values Key to graph Stroke = 400 mm Stroke = 320 mm Stroke = 200 mm Stroke = 120 mm Stroke = 80 mm äel = elastic deflection (mm) ML = dynamic longitudinal moment load capacity (Nm) a b c d e Rigidity of thrust rod Feed Module VKK 15-50